Keep in mind that before the iPhone 5 only Android platform supported Big Red's LTE.
Problem with that is certain makes of LTE phones with initial or older LTE-modem firmware can cause connectivity reliability / speed issues. And not everybody is a rooting bootloader unlocking S-Off ROM flasher so the statistics is a mixed bag.
Honestly I've never had any problem with two VZW LTE Android handset and a Hotspot in majority of SoCal, LA, OC, IE, SD, you name it. Of course it's not perfect as certain areas (MOSTLY INDOORS) my devices reverts back to the legacy connection (EvDO even 1xRTT) but 99% of the time it's on LTE, AND reliable too.